1. This is not a likely effect of LLM adoption.
2. Linux is already to the point of giving you about as many esoteric errors as Windows or macOS will.
People don't switch either because they are comfortable where they are and don't want to put forth the effort of changing their OS, or they are afraid of outdated criticism of Linux Desktops being error-filled nightmares.
1. It is. It makes me more likely to use Linux, and I'm not that far from the average. On Reddit r/gaming I've seen people who literally made the step and say exactly this "I installed Linux and when I can't figure something out I ask an LLM and it has done a great job so far".
It's happening right now. Maybe you're so opposed to the concept that you hate to imagine it, but it's the reality.
> or they are afraid of outdated criticism of Linux Desktops being error-filled nightmares
Your concept of people installing Linux is behind because even just over the last 12 months things have changed a lot.
My feeling is that I consistently find on-point solutions for my Linux problems with a quick search. However if my Windows install gets in trouble my search will yield some DISM.exe invocation which doesn't help at all. A bit anecdotal, but this is my experience. I've always been able to fix my Linux installs.